A section of Dufferin Street north of Highway 401 has reopened to traffic after an overnight water main break flooded the street with water.

CBC overnight reporter Tony Smyth Tweeted photos of Dufferin street covered with water between Finch Avenue West and  Martin Ross Avenue.

In one Twitter message, Smyth joked that "animals are gathering in pairs."

But Toronto Hydro was able to stop the leak early Thursday morning and the street reopened to traffic. 

There are about 1,400 water main breaks a year in Toronto. Many occur on days with extreme temperature changes, when freezing and expansion put extra pressure on the pipes.